公开(公告)号：US3572933A

公开(公告)日：1971-03-30

申请号：US3572933D

申请日：1967-12-29

Applicant: SARGENT WELCH SCIENTIFIC CO

Inventor： BOOSTROM ROY E

IPC: G01J3/12 ,  G03B27/30 ,  G09B23/06

CPC classification number: G01J3/12

Abstract: A monochromator unit adapted to diffract light into monochromatic components and to simplify teaching of a theory of optical instrumental analysis, wherein a housing having an operable top cover portion and a component-protecting but optically transparent cover unit thereunder is provided, said unit also including a mirror means for directing an incident light beam onto a diffraction grating, and wherein the means supporting the mirror means is movable by a cam which is mounted in association with an indicator means and an index for indicating the wavelength of the beam produced, and wherein collimating slits are provided for the incident beam and for directing the beam of monochromatic light onto a directed target area. In a preferred embodiment, the monochromator includes a cardioid profile cam arrangement, a support for the mirror unit which is supported by a leaf spring on one end and rests on the cam on the other end, and the optical components are mounted on a common base to simplify assembly of the unit. In addition, a construction is described wherein the base of the unit includes two mounting flanges or legs having screw means thereon for providing alignment of said monochromator in relation to a base unit and provides means for locking said monochromator unit in place on a base, said adjustment means and locking means being simple and independent of each other in operation.

公开(公告)号：US3554648A

公开(公告)日：1971-01-12

申请号：US3554648D

申请日：1967-12-29

Applicant: SARGENT WELCH SCIENTIFIC CO

Inventor： BOOSTROM ROY E ,  MANDELL ARMAN ,  MALTER LEWIS

IPC: G01J3/02 ,  G01N21/25 ,  G09B23/22 ,  G01J3/42 ,  G01J3/48 ,  G09B23/24

CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/0291 ,  G01N21/253 ,  G01N2201/024 ,  G09B23/22

Abstract: A COMBINATION TEACHING AID AND MODULAR INSTRUMENTAL ANALYSIS SYSTEM IN WHICH A PLURALITY OF MODULES ARE PROVIDED, EACH HAVING A SEPARATE FUNCTION, AND IN WHICH THE DIFFERENT MODULES ARE ADAPTED TO BE PLACE TOGETHER IN DIFFERENT COMBINATION TO PROVIDE DIFFERENT OPTICAL ANALYSIS INSTRUMENTS. THE MODULES INCLUDE A LIGHT SOURCE FOR PROVIDING LIGHT, A DETECTOR MODULE FOR RECEIVING LIGHT WHICH HAS BEEN EXPOSED TO A SAMPLE COMPARTMENT MODULE WHICH RECEIVES ONE OR MORE SAMPLES TO BE ANALYZED, AND MAY INCLUDE DISPLAY MEANS IN THE FORM OF A METER OR THE LIKE FOR READING THE OUTPUT OF THE DETECTOR MODULE. THE COMBINATION MAY ALSO INCLUDE A MONOCHROMATOR UNIT FOR PROVIDING SUBSTANTIALLY MONOCHROMATIC LIGHT, AND A FILTER MODULE WHICH IS ADAPTED TO CONTAIN ONE OR MORE FILTERS THROUGH WHICH A LIGHT BEAM MAY BE PASSED FOR OBTAINING A BEAM OF DESIRED FREQUENCY. DIFFERENT ARRANEMENTS OF THE VARIOUS MODULES WILL PRODUCE A SPECTROPHOTOMETER, A FILTER PHOTOMETER, OR A NEPHELOMETER. THE DESCRIBED MODULE UNITS ARE ARRANGED SO THAT AT LEAST SOME OF THEM MAY BE DISPOSED ON A BASE AND OPTICALLY ALIGNED BY MEANS OF COMBINATION ADJUSTING AND CLAMPING MEANS, SO THAT THE UNITS MAY BE THERE AFTER MOVED, OR REPLACED AS DESIRED WITHOUT AFFECTING THE ALINGMENT THEREOF. THE DESCRIBED UNITS ARE CONSTRUCTED AND ARRANGED SO THAT ALL THE SIGNIFICANT OPERATIONAL AND FUNCTIONAL PROPERTIES OF EACH MODULE MAY BE DIRECTLY OBSERVED BY THE STUDENT. THEREFORE, EACH MODULE IS ADAPTED TO PERFORM A MINIMUM NUMBER OF FUNCTIONS, AND THE MODULAR CONCEPT AND THE CONSTRUCTION FEATURES ARE USED AS A TEACHING AID USED TO EMPHASIZE THE RELATION BETWEEN VARIOUS SYSTEMS OF OPTICAL INSTRUMENTAL ANAYLSIS. THE FILTER COMPARTMENT MODULE AND THE SAMPLE COMPARTMENT MODULE INCLUDE HOLDER MEANS FOR HOLDING LIGHT FILTERS OR SAMPLE UNITS, AND THE HOLDER UNIT IS CONSTRUCTED SO AS TO FACILITATE INTERCHANGE OF SAMPLE HOLDERS AND FILTER UNITS, AND TO BE ADAPTED FOR USE WITHOUT CHANGE TO PERFORM DIFFERENT FUNCTIONS IN DIFFERENT INSTRUMENATAL COMBINATIONS.